Translator Disclaimer
2 October 2006 Opportunities in high-power fiber lasers
Author Affiliations +
Proceedings Volume 6389, Active and Passive Optical Components for Communications VI; 638909 (2006)
Event: Optics East 2006, 2006, Boston, Massachusetts, United States
Fiber lasers and amplifiers offer unique characteristics that are derived from the use of a waveguide and the properties of rare-earth doped silica glass. Their capability for high output power, with high efficiency, has been demonstrated both in CW and pulsed regimes. Cladding-pumped Yb-doped fiber lasers have now reached beyond kW levels with good beam quality. Advances in both fiber technology and high-power multimode diode pump sources, and the inherent power scalability of cladding-pumped fibers, lie behind this power surge. However, there are still many challenges to overcome in the high-power fiber laser area. These include, for example, single-mode output at higher powers and power scaling of a three-level laser. This paper reviews novel W-type fiber and depressed clad hollow optical fiber waveguide structures designed with distributed wavelength filter characteristics to achieve an efficient and high power cladding-pumped three-level lasers such as Nd-doped fiber laser operating at 930 nm and Yb-doped fiber laser at 980 nm. Moreover, such fiber geometries enable to scale up the output power in a small and single-mode core for generating a single-mode output beam in a robust and reliable manner.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jayanta Kumar Sahu, Jaesun Kim, Seongwoo Yoo, Andrew Webb, Christophe Codemard, Pascal Dupriez, Yoonchan Jeong, Johan Nilsson, David Richardson, and David N. Payne "Opportunities in high-power fiber lasers", Proc. SPIE 6389, Active and Passive Optical Components for Communications VI, 638909 (2 October 2006);

Back to Top